挤压浸渗中的包抄现象及气孔形成机制

来源期刊：中国有色金属学报1999年第1期

论文作者：赵平 高升吉 陈睿 董斌 沈保罗 涂铭旌

文章页码：29 - 34

关键词：挤压浸渗，合金液包抄，孔隙

Key words：infiltration by squeeze casting, outflanking of melt, pore in composite

摘    要：用中断挤压铸造法研究了ZL109合金液在莫来石纤维预制块中的流动状况。 发现微观上流动前沿存在许多合金液的“包抄”， 这种包抄可能导致孔洞的形成； 讨论了复合材料中孔洞的形成模型， 分析了预制块中纤维间最小间隙在形成孔洞中的作用。

Abstract: The flow front of ZL109 melt in mullite chopped fibre preform during melt infiltration was investigated with a method called stopping squeeze casting. It was found that there are a number of “outflankings” in the flow front, which can result in the formation of pores in the composite. A modeling of pore forming and the influence of the minimum interspaces on pore forming was analyzed and discussed also.